Over the past two decades, OP has set itself apart from the competition by expanding its product line significantly and building on a strong foundation of expertise. Today, OP is uniquely positioned to meet the needs of even the most discriminating client. Headquartered in London, Ontario, OP manages projects throughout Canada and the northeastern United States. OP's considerable knowledge of state-of-the-art product lines offers clients solutions to some of the most complex construction wall assemblies. Working proactively with owners, architects and general contractors, OP is a vital resource in streamlining the building process. This advantage translates into better coordination and communication which reduces overall projects costs.